The ecological state of the Miussky estuary – the most important water object from the point of view of reproduction and cultivation of the fish which is territorially located in an ancient mouth of the channel of the river Mius and connected with Taganrog Bay of the Azov sea is considered. The uniqueness of the water body lies in the fact that the natural waters of The Mius estuary make up the flow of the river Mius mixed with the sea waters of the Taganrog Bay, especially during periods of strong upland phenomena caused by weather conditions. The data of hydrochemical monitoring for 2016-2018 are used for the assessment, the dynamics of water quality changes according to the UKIZV index is considered and the component-by-component analysis of the concentrations of indicators that have the greatest impact on the negative ecological state of the water body is carried out.

Keywords: MPC, Miusskaya estuary, water quality, UKIZV, aluminum, Fe, petroleum products (PP)

The assessment of the effect of copper content in natural water on human health in the water intake areas of the city of Taganrog is considered. The assessment uses the data of hydrochemical monitoring for 2006-2016, examines the dynamics of changes in copper concentrations in water and bottom sediments, the effect of both deficiency and excess element in the body on human health. A comparative analysis of the dependence of the mortality of the population due to cardiovascular diseases on the concentration of copper in natural water is carried out.

Keywords: water quality, MPC, UKIZV, copper, health, cardiovascular diseases, mortality

The estimation of the modern ecological state of the Azov Sea is considered. For evaluation, a specific combinatorial water pollution index is used, an element is revealed, a sharp increase in the annual average concentrations of which leads to a negative effect on the ecological state. The influence of elevated aluminum concentrations in natural water and environmental degradation on human health is assessed.

Keywords: Maximum allowable concentration (MPC), specific combinatory index of water pollution (UKIZV), water quality, aluminum, human health, neurotoxin, Azov Sea

Examines the influence of seasonal wind-effected phenomena on the ecological state of the Gulf of Taganrog of the Azov sea. The evaluation uses specific combinatorial index of water pollution, examines the dynamics of the concentrations of indicators such as dissolved oxygen, salinity, copper, phosphate, affecting the environmental condition. The description of the hydrological and meteorological characteristics specific to the Gulf of Taganrog, forming a unique ecological environment for aquatic life. The analysis of the dynamics of the concentrations of indicators and draws conclusions about their seasonal surge phenomena

Keywords: surge phenomena, wind direction, MAC, SCIVP, water quality, dissolved oxygen, salinity, copper, phosphates

Examines the impact of natural water quality in areas of water intakes of the city of Taganrog. The evaluation uses specific combinatorial index of water pollution, deals with the dynamics of the main polluting substances in the area of water intakes and their impact on cardiovascular disease of the population. A comparative analysis of the dynamics of pollutants in natural water and the dynamics of mortality from cardiovascular diseases and the dynamics of primary morbidity, defined pollutants that have the most negative impact on the statistics of cardiovascular diseases, recommendations for prevention of these diseases

Keywords: MAC, SCIVP, water quality, IVP, critical indicators of water pollution, copper, manganese, water quality, heart, circulatory system

The main contence of this article is a valuation quality of water in water intakes places of Taganrog. A specific combinatory index of pollution of water is used for valuation quality. In this article is considered dynamics of the main polluting substances around water intakes.

Keywords: maximum permissible concentration specific, combinatory index of water pollution, quality of water, critical indicators ofwater pollution, sulfates